Machinery, tools, circuits... post pictures of anything related to engineering

Post photos of big things!

Year 2 - During this week participants are asked to photograph buildings, large structures, parts or details thereof. Photos can be of the interior or exterior of building or structure. When posting please list if possible where the photo was taken and name of building/structure if it has one.

Members post rainbow-related images for a week, whether individual colours of the rainbow each day or images of rainbows. This is the 2nd annual Rainbow Week Challenge.

Members are invited to post images related to Valentines Day, or even Valentine messages.

Winter can be cold and dark, but every now and again one might find early signals of brighter times ahead. Members are invited to post early signs of Spring.

Members are invited to post photos of remembrance events, poppies, memorials etc

Members are invited to post at least five photos that best capture an autumnal feel or theme.

Members are invited to perform post-processing on their photos during this week.

Members are invited to post photos with repeating patterns or repeated subjects.

A follow up to the successful Black and White Week in February, but hopefully with better natural light!

Members are invited to post images involving, or intimating, colours or materials silver and gold over the weekend.

Members are invited to post images involving or relating to shadows.

On the Summer Solstice of 2010, members are invited to post photographs relevant to the longest day of the year.

From stone carving to graffiti, from typesetting tools to handwriting, the project is to take a photograph of letters, lettering or typography.

To mark Election day in the UK when we put an X next to somebody's name on a ballot paper, members are invited to post their interpretation of crosses or Xs - the more abstract the better!

During the month of May, 2010, members are invited to photograph and complete challenges representing solutions to 12 cryptic clues.

Members post images depicting a Wild Weekend. Wilderness, wild party, abandoned urban areas, or any way you can define it. The wilder the better.

Members post reflections. In water, mirrors, windows, spoons or wherever reflections are found

During this week participants are asked to photograph buildings, large structures, parts or details thereof. Photos can be of the interior or exterior of building or structure. When posting please list if possible where the photo was taken and name of building/structure if it has one.

Members post a portrait, whether a self-portrait or a portrait of a friend or relative

Members post a photo representing the number 365

Members post images relating to all things Irish

Members post rainbow-related images for a week, whether individual colours of the rainbow each day or images of rainbows

Members take black and white photos for a week

Members post something to do with the word or the colour blue

Members are invited to post close-up images for this community project

Members post photos with a Beatles song title theme or message

Members are invited to post photos of flowers, shrubs, buds etc.

Members are invited to post photos of food on fridays

Members post images of postboxes of all types, in all locations

Members post any or all of the photos they take on their Project 365's half-way point, Day 183.

Members post photos with a visual pun or a puntastic title

Members are invited to post images of seaside icons.. all things coastal or shoreline - lakes with beaches included.

This challenge is to post a photo of robins that doesn't look festive

Members post their interpretation of real or potential names for pubs

Returning members are invited to take a photo of the same subject as taken on the same day the previous year.